Jump to main content
Jump to site nav
Home
About us
Membership & professional community
Campaigning & outreach
Journals, books & databases
Teaching & learning
News & events
Locations & contacts
Home
About us
Web APIs
Help
Sign in
ChemSpider
Search and share chemistry
Simple
Structure
Advanced
History
Molecular Formula:
Define range intervals using parentheses.
E.g. C7H(10-14)O(0-4)
Molecular Weight:
to
±
(example: 123 ± 1)
min/max
+/-
Nominal Mass:
to
±
-2H+
-H+
+H+
+2H+
min/max
+/-
Average Mass:
to
±
M+CH3CNH
M+CH3OH2
M+.
M+K
M+Na
M+NH4
M+H
M-H
M+acetate
M-.
M+Cl
-e
+e
min/max
+/-
Monoisotopic Mass:
to
±
M+CH3CNH
M+CH3OH2
M+.
M+K
M+Na
M+NH4
M+H
M-H
M+acetate
M-.
M+Cl
-e
+e
min/max
+/-
Search
Search Hits Limit:
100
1000
10000
Filter
Single/Multi-component
Search Any
Search Single-Component Structures Only
Search Multi-Component Structures Only
Isotopically Labeled
Search Any
Search Isotopically Labeled Structures Only
Disregard Isotopically Labeled Structures
Additional Filters
Filter only those having analytical data
Found 27 results
Search term:
MF = 'C_{5}H_{5}N_{2}O_{2}'
1
2
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
3351679
zoom
C
5
H
5
N
2
O
2
125.1054
4
5
3
4
4754699
zoom
C
5
H
5
N
2
O
2
125.1049
4
3
0
0
2986339
zoom
C
5
H
5
N
2
O
2
125.1054
3
2
0
0
5353026
zoom
C
5
H
5
N
2
O
2
125.1059
2
2
0
0
335821
zoom
C
5
H
5
N
2
O
2
125.1049
2
1
0
0
394698
zoom
C
5
H
5
N
2
O
2
125.1049
2
2
0
0
5384252
zoom
C
5
H
5
N
2
O
2
125.1059
2
1
0
0
8233052
zoom
C
5
H
5
N
2
O
2
125.1049
2
1
0
0
13094931
zoom
C
5
H
5
N
2
O
2
125.1049
2
2
0
0
21239027
zoom
C
5
H
5
N
2
O
2
125.1059
2
1
0
0
24770684
zoom
C
5
H
5
N
2
O
2
125.1059
1
1
3
16
24775823
zoom
C
5
H
5
N
2
O
2
125.1059
1
1
2
2
26944264
zoom
C
5
H
5
N
2
O
2
125.1059
1
4
0
0
14261558
zoom
C
5
H
5
N
2
O
2
125.1054
1
1
0
0
5398584
zoom
C
5
H
5
N
2
O
2
125.1059
1
1
0
0
3752958
zoom
C
5
H
5
N
2
O
2
125.1054
1
1
0
0
5353889
zoom
C
5
H
5
N
2
O
2
125.1059
1
1
0
0
4924916
zoom
C
5
H
5
N
2
O
2
125.1049
1
1
0
0
1
2
Advertisement
Advertisement
Spotlight
Advertisement